RU2010147356A - BOILER SYSTEM WITH OXYGEN-FUEL COMBUSTION AND METHOD FOR ENERGY GENERATION BY USING THE BOILER SYSTEM - Google Patents

BOILER SYSTEM WITH OXYGEN-FUEL COMBUSTION AND METHOD FOR ENERGY GENERATION BY USING THE BOILER SYSTEM Download PDF

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RU2010147356A
RU2010147356A RU2010147356/06A RU2010147356A RU2010147356A RU 2010147356 A RU2010147356 A RU 2010147356A RU 2010147356/06 A RU2010147356/06 A RU 2010147356/06A RU 2010147356 A RU2010147356 A RU 2010147356A RU 2010147356 A RU2010147356 A RU 2010147356A
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exhaust gas
steam
gas
boiler system
furnace
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RU2010147356/06A
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Russian (ru)
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Хорст ХЭК (US)
Хорст ХЭК
Эндрю ЗЕЛЬЦЕР (US)
Эндрю ЗЕЛЬЦЕР
Чжень ФАНЬ (US)
Чжень ФАНЬ
Арчибальд РОБЕРТСОН (US)
Арчибальд РОБЕРТСОН
Тимо ЭРИКССОН (FI)
Тимо ЭРИКССОН
Осси СИППУ (FI)
Осси СИППУ
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Фостер Уилер Энерджи Корпорейшн (Us)
Фостер Уилер Энерджи Корпорейшн
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Publication of RU2010147356A publication Critical patent/RU2010147356A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
    • F01K7/24—Control or safety means specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Air Supply (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Chimneys And Flues (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Carbonaceous fuel is combusted with an oxidant gas in a furnace of a boiler system to generate power. Oxidant gas is fed into the furnace for combusting the fuel to produce exhaust gas, the exhaust gas is discharged from the furnace via an exhaust gas channel, a stream of feedwater is conveyed from a final economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, the superheated steam is converted in a high-pressure steam turbine for generating power, a first portion of steam is extracted from the high-pressure steam turbine for preheating the feedwater, a second portion of steam is conveyed from the high-pressure steam turbine to reheating heat exchange surfaces arranged in the exhaust gas channel for generating reheated steam, and the reheated steam is expanded in an intermediate pressure steam turbine for generating power. The oxidant gas can be a mixture of substantially pure oxygen and recycled exhaust gas, and the ratio of the first and second portions of steam can be controlled to obtain a desired flue gas temperature in the exhaust gas channel downstream of the final economizer.

Claims (16)

1. Способ генерирования энергии посредством сжигания углеродосодержащего топлива с окислительным газом в топке котельной системы, содержащий этапы, на которых:1. A method of generating energy by burning carbon-containing fuel with oxidizing gas in a furnace of a boiler system, comprising the steps of: (a) подают углеродосодержащее топливо в топку со скоростью подачи топлива;(a) supplying carbon-containing fuel to the furnace at a fuel feed rate; (b) подают окислительный газ в топку для сжигания топлива, чтобы производить отходящий газ;(b) supplying oxidizing gas to the combustion chamber to produce off-gas; (c) выпускают отходящий газ из топки через канал отходящего газа;(c) discharging exhaust gas from the furnace through an exhaust gas channel; (d) транспортируют поток питательной воды со скоростью транспортировки питательной воды от конечного экономайзера, расположенного в канале отходящего газа, к испаряющим и нагревающим теплообменным поверхностям, расположенным в топке и в канале отходящего газа, для преобразования питательной воды в перегретый пар;(d) transporting the flow of feed water at a speed of transporting feed water from the final economizer located in the exhaust gas channel to the evaporating and heating heat exchange surfaces located in the furnace and in the exhaust gas channel to convert the feed water to superheated steam; (e) расширяют перегретый пар в паровой турбине высокого давления для генерирования энергии;(e) expanding superheated steam in a high pressure steam turbine to generate energy; (f) извлекают первую порцию пара из паровой турбины высокого давления для подогрева питательной воды;(f) removing a first portion of steam from a high pressure steam turbine to heat the feed water; (g) транспортируют вторую порцию пара из паровой турбины высокого давления к повторно нагревающим теплообменным поверхностям, расположенным в канале отходящего газа, для генерирования повторно нагретого пара; и(g) transporting a second portion of steam from the high pressure steam turbine to reheating heat exchange surfaces located in the exhaust gas channel to generate reheated steam; and (h) расширяют повторно нагретый пар в паровой турбине среднего давления для генерирования энергии,(h) expanding the reheated steam in a medium pressure steam turbine to generate energy, причем при первых рабочих условиях окислительный газ является смесью, по существу, чистого кислорода и рециркулируемого отходящего газа, и отношением первой и второй порций пара управляют так, чтобы получить требуемую температуру топочного газа в канале отходящего газа после конечного экономайзера.moreover, under the first operating conditions, the oxidizing gas is a mixture of essentially pure oxygen and recirculated exhaust gas, and the ratio of the first and second portions of steam is controlled so as to obtain the desired temperature of the flue gas in the exhaust gas channel after the final economizer. 2. Способ по п.1, в котором скорость подачи топлива и скорость транспортировки питательной воды регулируют так, чтобы получить требуемую температуру топки.2. The method according to claim 1, in which the fuel feed rate and the feed water transportation rate are controlled so as to obtain the desired furnace temperature. 3. Способ по п.2, в котором при вторых рабочих условиях окислительный газ является воздухом, и при работе системы сжигания с полной нагрузкой при первых и вторых рабочих условиях скорость подачи топлива при первых рабочих условиях выше, чем скорость подачи топлива при вторых рабочих условиях.3. The method according to claim 2, in which, under the second operating conditions, the oxidizing gas is air, and when the combustion system is operating at full load under the first and second working conditions, the fuel feed rate under the first working conditions is higher than the fuel feed rate under the second working conditions . 4. Способ по п.3, в котором при работе системы сжигания с полной нагрузкой при первых и вторых рабочих условиях первая порция пара при первых рабочих условиях меньше, чем первая порция пара при вторых рабочих условиях, и вторая порция пара при первых рабочих условиях больше, чем вторая порция пара при вторых рабочих условиях.4. The method according to claim 3, in which when the combustion system is operating at full load under the first and second working conditions, the first portion of steam under the first working conditions is less than the first portion of steam under the second working conditions, and the second portion of steam under the first working conditions is than the second portion of steam under the second working conditions. 5. Способ по п.3, в котором система содержит теплообменник газ-газ, и тепло передают в теплообменнике газ-газ при первых и вторых рабочих условиях от отходящего газа в канале отходящего газа, по меньшей мере, одной порции окислительного газа.5. The method according to claim 3, in which the system comprises a gas-gas heat exchanger, and heat is transferred to the gas-gas heat exchanger under the first and second working conditions from the exhaust gas in the exhaust gas channel of at least one portion of the oxidizing gas. 6. Способ по п.1, в котором управление содержит измерение температуры отходящего газа.6. The method according to claim 1, in which the control comprises measuring the temperature of the exhaust gas. 7. Способ по п.3, в котором скорость транспортировки питательной воды больше при первых рабочих условиях, чем скорость транспортировки питательной воды при вторых рабочих условиях.7. The method according to claim 3, in which the feed water transport speed is greater under the first operating conditions than the feed water transport speed under the second operating conditions. 8. Способ по п.1, в котором способ содержит при первых рабочих условиях дополнительный этап сжатия порции отходящего газа во множестве компрессоров отходящего газа так, чтобы производить жидкий или сверхкритический углекислый газ.8. The method according to claim 1, in which the method comprises, at first operating conditions, an additional step of compressing a portion of the off-gas in a plurality of off-gas compressors so as to produce liquid or supercritical carbon dioxide. 9. Способ по п.1, в котором способ содержит при первых рабочих условиях дополнительный этап извлечения порции пара из паровой турбины среднего давления для приведения в действие компрессора.9. The method according to claim 1, in which the method comprises, at first operating conditions, an additional step of extracting a portion of steam from the medium pressure steam turbine to drive the compressor. 10. Способ по п.9, в котором при первых рабочих условиях кислород смешивают с рециркулируемым отходящим газом так, чтобы производить окислительный газ, имеющий среднее содержание кислорода, по объему от около 18% до около 28%.10. The method according to claim 9, in which, under the first operating conditions, oxygen is mixed with recirculated exhaust gas so as to produce an oxidizing gas having an average oxygen content, by volume, from about 18% to about 28%. 11. Котельная система для генерирования энергии посредством сжигания углеродосодержащего топлива в топке котельной системы, содержащая:11. A boiler system for generating energy by burning carbonaceous fuel in a furnace of a boiler system, comprising: средство для подачи углеродосодержащего топлива в топку;means for supplying carbon-containing fuel to the furnace; средство для подачи, по существу, чистого кислорода и рециркулированного отходящего газа в качестве окислительного газа в топку для сжигания топлива, чтобы производить отходящий газ;means for supplying substantially pure oxygen and recycled off-gas as oxidizing gas to the combustion chamber for producing fuel to produce off-gas; канал отходящего газа для выпуска отходящего газа из топки;an exhaust gas channel for discharging exhaust gas from the furnace; средство для транспортировки потока питательной воды от конечного экономайзера, расположенного в канале отходящего газа, к испаряющим и нагревающим теплообменным поверхностям, расположенным в топке и в канале отходящего газа, для преобразования питательной воды в перегретый пар;means for transporting the feed water stream from the final economizer located in the exhaust gas channel to the evaporating and heating heat exchange surfaces located in the furnace and in the exhaust gas channel to convert the feed water to superheated steam; паровую турбину высокого давления для расширения перегретого пара для генерирования энергии;high pressure steam turbine to expand superheated steam to generate energy; средство для извлечения первой порции пара из паровой турбины высокого давления для подогрева питательной воды;means for extracting a first portion of steam from a high pressure steam turbine to heat the feed water; средство для транспортировки второй порции пара из паровой турбины высокого давления к повторно нагревающим теплообменным поверхностям, расположенным в канале отходящего газа, для генерирования повторно нагретого пара;means for transporting a second portion of steam from the high-pressure steam turbine to reheating heat exchange surfaces located in the exhaust gas channel to generate reheated steam; паровую турбину среднего давления для расширения повторно нагретого пара для генерирования энергии; иmedium pressure steam turbine to expand reheated steam to generate energy; and средство для управления отношением первой и второй порций пара так, чтобы получить требуемую температуру топочного газа в канале отходящего газа после конечного экономайзера.means for controlling the ratio of the first and second portions of steam so as to obtain the desired temperature of the flue gas in the exhaust gas channel after the final economizer. 12. Котельная система по п.11, в которой котельная система содержит средство для подачи воздуха в качестве окислительного газа в топку для сжигания топлива, чтобы производить отходящий газ.12. The boiler system according to claim 11, in which the boiler system comprises means for supplying air as oxidizing gas to the furnace for burning fuel to produce off-gas. 13. Котельная система по п.11, в которой котельная система содержит теплообменник газ-газ для передачи тепла от отходящего газа в канале отходящего газа, по меньшей мере, одной порции окислительного газа.13. The boiler system according to claim 11, in which the boiler system comprises a gas-gas heat exchanger for transferring heat from the exhaust gas in the exhaust gas channel of at least one portion of the oxidizing gas. 14. Котельная система по п.11, в которой средство для управления содержит средство для измерения температуры отходящего газа.14. The boiler system according to claim 11, in which the control means comprises means for measuring the temperature of the exhaust gas. 15. Котельная система по п.11, в которой котельная система содержит множество компрессоров отходящего газа для сжатия порции отходящего газа так, чтобы производить жидкий или сверхкритический углекислый газ.15. The boiler system according to claim 11, in which the boiler system comprises a plurality of exhaust gas compressors for compressing a portion of the exhaust gas so as to produce liquid or supercritical carbon dioxide. 16. Котельная система по п.11, в которой котельная система содержит средство для извлечения порции пара из паровой турбины среднего давления для приведения в действие компрессора. 16. The boiler system according to claim 11, in which the boiler system comprises means for extracting a portion of steam from a medium pressure steam turbine to drive a compressor.
RU2010147356/06A 2008-04-22 2009-04-21 BOILER SYSTEM WITH OXYGEN-FUEL COMBUSTION AND METHOD FOR ENERGY GENERATION BY USING THE BOILER SYSTEM RU2010147356A (en)

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US12/107,198 2008-04-22
US12/107,198 US20090260585A1 (en) 2008-04-22 2008-04-22 Oxyfuel Combusting Boiler System and a Method of Generating Power By Using the Boiler System

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EP (1) EP2300692B1 (en)
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KR (1) KR20110010731A (en)
CN (1) CN102016241A (en)
AT (1) ATE533924T1 (en)
AU (1) AU2009239601B2 (en)
ES (1) ES2377909T3 (en)
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